$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcompletion.git /var/lib/mock/f45-build-14837-464/root/chroot_tmpdir/scmroot/kf5-kcompletion
Cloning into '/var/lib/mock/f45-build-14837-464/root/chroot_tmpdir/scmroot/kf5-kcompletion'...
$ git fetch origin 325d0ed6d3ed2630ecaa7941708adb7dc6be7852:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcompletion
 * [new ref]         325d0ed6d3ed2630ecaa7941708adb7dc6be7852 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 325d0ed Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild